[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Mon Jun 20 22:05:43 UTC 2022
IPv4 R&E Routing Table Report 22:05 GMT Mon 20 Jun, 2022
IPv4 BGP Table (R&E) as seen at CENIC.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CENIC/
Analysis Summary
----------------
BGP routing table entries examined: 22288
Prefixes after maximum aggregation (per Origin AS): 12603
Deaggregation factor: 1.77
Unique aggregates announced (without unneeded subnets): 14546
Number of IPv4 prefixes with a valid ROA: 7552
Number of IPv4 prefixes with an invalid ROA: 17
Number of IPv4 prefixes with no ROA: 14719
Total ASes present in the Internet Routing Table: 2805
Prefixes per ASN: 7.95
Origin-only ASes present in the Internet Routing Table: 2423
Origin ASes announcing only one prefix: 1102
Transit ASes present in the Internet Routing Table: 382
Transit-only ASes present in the Internet Routing Table: 61
Paths with bogon ASNs present in the IPv4 Routing Table: 3
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 16
Max AS path prepend of ASN ( 1149) 11
Prefixes from unregistered ASNs in the Routing Table: 6
Number of instances of unregistered ASNs: 6
Number of 32-bit ASNs allocated by the RIRs: 39624
Number of 32-bit ASNs visible in the Routing Table: 638
Prefixes from 32-bit ASNs in the Routing Table: 1752
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 5
Number of addresses announced to Internet: 288429056
Equivalent to 17 /8s, 49 /16s and 20 /24s
Percentage of available address space announced: 7.8
Percentage of allocated address space announced: 7.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 2630
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4624
Total APNIC prefixes after maximum aggregation: 2293
APNIC Deaggregation factor: 2.02
Prefixes being announced from the APNIC address blocks: 4705
Unique aggregates announced from the APNIC address blocks: 2678
APNIC Region origin ASes present in the Internet Routing Table: 586
APNIC Prefixes per ASN: 8.03
APNIC Region origin ASes announcing only one prefix: 259
APNIC Region transit ASes present in the Internet Routing Table: 69
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 232
Number of APNIC addresses announced to Internet: 46722048
Equivalent to 2 /8s, 200 /16s and 236 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-151865
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 11782
Total ARIN prefixes after maximum aggregation: 6697
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 11554
Unique aggregates announced from the ARIN address blocks: 7782
ARIN Region origin ASes present in the Internet Routing Table: 1266
ARIN Prefixes per ASN: 9.13
ARIN Region origin ASes announcing only one prefix: 448
ARIN Region transit ASes present in the Internet Routing Table: 161
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 176
Number of ARIN addresses announced to Internet: 174450432
Equivalent to 10 /8s, 101 /16s and 231 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8,
66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8,
73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8,
99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3512
Total RIPE prefixes after maximum aggregation: 2837
RIPE Deaggregation factor: 1.24
Prefixes being announced from the RIPE address blocks: 3658
Unique aggregates announced from the RIPE address blocks: 3024
RIPE Region origin ASes present in the Internet Routing Table: 673
RIPE Prefixes per ASN: 5.44
RIPE Region origin ASes announcing only one prefix: 308
RIPE Region transit ASes present in the Internet Routing Table: 99
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 15
Number of RIPE region 32-bit ASNs visible in the Routing Table: 137
Number of RIPE addresses announced to Internet: 59685632
Equivalent to 3 /8s, 142 /16s and 187 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-213403
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1434
Total LACNIC prefixes after maximum aggregation: 570
LACNIC Deaggregation factor: 2.52
Prefixes being announced from the LACNIC address blocks: 1434
Unique aggregates announced from the LACNIC address blocks: 767
LACNIC Region origin ASes present in the Internet Routing Table: 166
LACNIC Prefixes per ASN: 8.64
LACNIC Region origin ASes announcing only one prefix: 64
LACNIC Region transit ASes present in the Internet Routing Table: 24
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68
Number of LACNIC addresses announced to Internet: 4781056
Equivalent to 0 /8s, 72 /16s and 244 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 930
Total AfriNIC prefixes after maximum aggregation: 200
AfriNIC Deaggregation factor: 4.65
Prefixes being announced from the AfriNIC address blocks: 932
Unique aggregates announced from the AfriNIC address blocks: 290
AfriNIC Region origin ASes present in the Internet Routing Table: 48
AfriNIC Prefixes per ASN: 19.42
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25
Number of AfriNIC addresses announced to Internet: 2788608
Equivalent to 0 /8s, 42 /16s and 141 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 571 2140 454 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
1237 187 74 135 KREONET-AS-KR KISTI, KR
7575 176 330 122 AARNET-AS-AP Australian Academic and Re
58647 175 18 2 KAGAWAU-AS Kagawa University, JP
4538 128 4192 73 ERX-CERNET-BKB China Education and Rese
55824 116 18 11 NKN-CORE-NW NKN Core Network, IN
4621 78 37 10 UNINET-AS-AP UNINET-, TH
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 2551 4354 1078 AMAZON-02, US
14618 613 3990 468 AMAZON-AES, US
8075 228 10878 201 MICROSOFT-CORP-MSN-AS-BLOCK, US
668 210 702 178 DNIC-AS-00668, US
376 204 178 153 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
2152 152 507 90 CSUNET-NW, US
18558 131 18 4 NETBLK-RCOEK, US
270 120 329 88 AS270, US
23024 114 7 17 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 285 1967 251 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
8895 137 24 4 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 100 1520 87 SURFNET-NL SURFnet, The Netherlands, NL
2614 96 27 76 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 73 449 73 BELWUE BelWue-Koordination, DE
2200 64 599 59 FR-RENATER Reseau National de telecommu
1930 58 81 53 RCCN Fundacao para a Ciencia e a Tecnol
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 158 208 44 Rede Nacional de Ensino e Pesquisa, BR
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
11340 95 24 54 Red Universitaria Nacional, CL
1251 59 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
4270 41 16 1 Red de Interconexion Universitaria, AR
61468 41 3 15 CEDIA, EC
28571 39 42 16 UNIVERSIDADE DE SAO PAULO, BR
28614 37 2 2 Fundacao Universidade Regional de Blume
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 376 319 73 TENET-1, ZA
36914 218 82 3 KENET-AS, KE
2561 67 4 32 EUN, EG
8094 48 48 15 PUKNET, ZA
327687 39 28 3 RENU, UG
327700 32 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 18 8 1 TERNET, TZ
37074 13 8 2 UG-AS, GH
37501 11 49 6 UOFS, ZA
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 2551 4354 1078 AMAZON-02, US
14618 613 3990 468 AMAZON-AES, US
2907 571 2140 454 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
2018 376 319 73 TENET-1, ZA
680 285 1967 251 DFN Verein zur Foerderung eines Deutsch
8075 228 10878 201 MICROSOFT-CORP-MSN-AS-BLOCK, US
36914 218 82 3 KENET-AS, KE
668 210 702 178 DNIC-AS-00668, US
376 204 178 153 RISQ-AS, CA
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 432 408 CSTNET-AS-AP Computer Network Information Cente
2018 376 303 TENET-1, ZA
36914 218 215 KENET-AS, KE
5786 200 199 UPRENET, PR
58647 175 173 KAGAWAU-AS Kagawa University, JP
14618 613 145 AMAZON-AES, US
8895 137 133 ISU Internet Services Unit ISU, SA
18558 131 127 NETBLK-RCOEK, US
2907 571 117 SINET-AS Research Organization of Information a
1916 158 114 Rede Nacional de Ensino e Pesquisa, BR
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
103.151.24.0/24 Origin: 16509 AMAZON-02, US
103.151.24.0/24 Transit: 2152 CSUNET-NW, US
192.31.196.0/24 Origin: 112 UNASSIGNED
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
198.135.168.0/24 Origin: 14618 AMAZON-AES, US
198.135.168.0/24 Transit: 16509 AMAZON-02, US
216.169.147.0/24 Origin: 14618 AMAZON-AES, US
216.169.147.0/24 Transit: 16509 AMAZON-02, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:4 /11:7 /12:28
/13:34 /14:80 /15:199 /16:2146 /17:463 /18:475
/19:612 /20:1010 /21:988 /22:1594 /23:1757 /24:12890
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 368 2551 AMAZON-02, US
14618 205 613 AMAZON-AES, US
36914 205 218 KENET-AS, KE
8895 132 137 ISU Internet Services Unit ISU, SA
23024 53 114 OCDE, US
25977 31 45 HCCS, US
28614 31 37 Fundacao Universidade Regional de Blumenau, BR
32440 30 45 LONI, US
200521 30 51 SEAP-AGE, ES
263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 3:81 4:2 5:16 6:4 8:2
12:1 13:99 14:86 15:61 16:2 18:55
23:45 24:3 31:7 35:10 37:7 38:9
40:3 41:124 42:10 44:5 45:50 46:10
47:1 49:10 50:11 52:731 54:236 58:1
59:20 60:4 61:3 62:11 63:42 64:141
65:12 66:74 67:62 68:17 69:45 70:27
71:8 72:18 74:42 76:39 77:10 78:4
79:10 80:18 81:28 82:5 83:6 84:4
85:47 86:4 87:2 88:1 89:12 91:55
93:10 94:4 95:4 96:6 97:1 98:13
99:51 101:6 102:13 103:345 104:108 107:18
108:20 109:12 110:4 111:17 113:1 114:23
115:1 116:6 117:61 118:32 119:23 121:27
122:11 123:8 124:39 125:4 128:90 129:45
130:146 131:84 132:58 133:145 134:99 135:1
136:211 137:89 138:10 139:17 140:52 141:5
142:58 143:35 144:35 145:2 146:131 147:67
148:201 149:15 150:138 151:8 152:81 153:13
154:29 155:65 156:68 157:37 158:50 159:157
160:31 161:29 162:56 163:67 164:29 165:65
166:1 167:23 168:164 169:12 170:127 171:1
172:10 173:19 174:1 175:31 176:12 177:11
178:3 179:11 180:21 181:1 182:4 184:4
185:70 186:3 187:19 188:14 189:5 190:34
191:36 192:1535 193:316 194:132 195:90 196:162
197:123 198:536 199:332 200:240 201:38 202:641
203:431 204:361 205:198 206:216 207:196 208:116
209:138 210:184 211:15 212:173 213:16 214:8
216:149 217:11 218:22 219:6 220:17 222:5
223:3
End of report
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